4-[2-[[(2S)-4-(4-hydroxyphenyl)butan-2-yl]amino]ethyl]benzene-1,2-diol 4-[2-[[(1S)-3-(4-hydroxyphenyl)-1-methyl-propyl]amino]ethyl]benzene-1,2-diol 4-[2-[[(1S)-3-(4-hydroxyphenyl)-1-methylpropyl]amino]ethyl]benzene-1,2-diol 4-[2-[[(1S)-3-(4-hydroxyphenyl)-1-methyl-propyl]amino]ethyl]pyrocatechol NCGC00024629-01 Tocris-0515 Lopac-D-0676 NCGC00015321-01 CAS-49745-95-1 NCGC00016857-01